Partial shut-off damper

ASR-ASP - Circular partial shut-off dampers are used to install a ventilation system in buildings with spiral or sytaight ducts. The damper handle is made in such a way that the damper can be insulated with 50 mm stone wool and the handle remains visible from the outside. The opening angle of the blade can be adjusted from 0 ° to 90 °. The position of the handle is fixed with screws. The partial shut-off damper can also be used as regulating damper.